Filter by
Fitting Type
Length
Threading
Specifications Met
Maximum Pressure @ Temperature
Flange Material
Fitting Material
Export Control Classification Number (ECCN)
DFARS Specialty Metals
REACH
RoHS
Hex Width
Maximum Steam Pressure @ Temperature
Fabrication
How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
More
Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings
Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance.
Straight Adapters, Female × Male
- For Use With:
NPT × BSPP: Natural Gas, Water
All others: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water - Specifications Met:
NPT × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
BSPP × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
BSPT × NPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
Pipe Size | Dash Size | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female × BSPT Male | |||||
|---|---|---|---|---|---|
| 1/8 | 02 | 6,100 psi @ 72° F | 6,100 psi @ 300° F | 0000000 | 000000 |
| 1/4 | 04 | 6,200 psi @ 72° F | 6,200 psi @ 300° F | 0000000 | 00000 |
| 3/8 | 06 | 5,000 psi @ 72° F | 5,000 psi @ 300° F | 0000000 | 00000 |
| 1/2 | 08 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 0000000 | 00000 |
| 3/4 | 12 | 4,300 psi @ 72° F | 4,300 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 4,100 psi @ 72° F | 4,100 psi @ 300° F | 0000000 | 000000 |
BSPT Female × NPT Male | |||||
| 1/8 | 02 | 6,100 psi @ 72° F | 6,100 psi @ 300° F | 0000000 | 00000 |
| 1/4 | 04 | 6,200 psi @ 72° F | 6,200 psi @ 300° F | 0000000 | 00000 |
| 3/8 | 06 | 5,000 psi @ 72° F | 5,000 psi @ 300° F | 0000000 | 00000 |
| 1/2 | 08 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 0000000 | 00000 |
| 3/4 | 12 | 4,300 psi @ 72° F | 4,300 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 4,100 psi @ 72° F | 4,100 psi @ 300° F | 0000000 | 000000 |
Straight Adapters, Male
Straight Adapter, Male Threaded Pipe
- For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT and UN/UNF (SAE Straight) Male × NPT Male: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water - Specifications Met:
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
UN/UNF (SAE Straight) Male × NPT Male: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479, SAE J1926
| Pipe Size (A) | Dash Size (A) | Pipe Size (B) | Dash Size (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male × BSPT Male | |||||||
|---|---|---|---|---|---|---|---|
| 1/8 | 02 | 1/8 | 02 | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 0000000 | 000000 |
| 1/4 | 04 | 1/4 | 04 | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 0000000 | 00000 |
| 3/8 | 06 | 3/8 | 06 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 0000000 | 00000 |
| 1/2 | 08 | 1/2 | 08 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 0000000 | 00000 |
| 3/4 | 12 | 3/4 | 12 | 6,400 psi @ 72° F | 6,400 psi @ 300° F | 0000000 | 00000 |
| 1 | 16 | 1 | 16 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 0000000 | 00000 |
Extreme-Pressure Stainless Steel Threaded Pipe Fittings
With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines. 316 stainless steel fittings have excellent corrosion resistance.
Straight Adapters, Male
Front
- For Use With: See table
- Specifications Met: See table
316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size (A) | Dash Size (A) | Pipe Size (B) | Dash Size (B) | Max. Pressure | For Use With | Specifications Met | Each | |
NPT Male × BSPT Male | ||||||||
| 1/4 | 04 | 1/4 | 04 | 6,000 psi @ 72° F | Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226, ISO 7.1 | 00000000 | 000000 |
| 3/8 | 06 | 3/8 | 06 | 5,500 psi @ 72° F | Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226, ISO 7.1 | 00000000 | 00000 |
| 1/2 | 08 | 1/2 | 08 | 4,500 psi @ 72° F | Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226, ISO 7.1 | 00000000 | 00000 |
| 3/4 | 12 | 3/4 | 12 | 3,500 psi @ 72° F | Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226, ISO 7.1 | 00000000 | 00000 |
| 1 | 16 | 1 | 16 | 3,000 psi @ 72° F | Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226, ISO 7.1 | 00000000 | 00000 |
Low-Pressure Stainless Steel Threaded Pipe Fittings
Use these fittings in a low-pressure pipe line. 304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.
Straight Adapters, Male
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Specifications Met:
BSPP × NPT and 316 Stainless Steel BSPT × NPT: ASTM A351
304 Stainless Steel BSPT × NPT: ASME B1.20.1, DIN EN 10226 - Fabrication: Heat Treated
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
304 Stainless Steel | 316 Stainless Steel | |||||
|---|---|---|---|---|---|---|
| Pipe Size | Max. Steam Pressure | Max. Pressure | Each | Each | ||
BSPT Male × NPT Male | ||||||
| 1/8 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/4 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 0000 | 00000000 | 0000 |
| 3/8 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/2 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/4 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1 1/4 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1 1/2 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 2 | 150 psi @ 350° F | 300 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
Straight Reducing Adapters
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Specifications Met:
BSPP × NPT and 316 Stainless Steel BSPT × NPT: ASTM A351
304 Stainless Steel BSPT × NPT: ASME B1.20.1, DIN EN 10226 - Fabrication: Heat Treated
- Pipe Nipples and Pipe: Use Schedule 40 stainless steel
- Flanges: Use Class 150 stainless steel
Pipe Size | 316 Stainless Steel | ||||
|---|---|---|---|---|---|
| (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
BSPT Male × NPT Male | |||||
| 1/4 | 1/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 3/8 | 1/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 3/8 | 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1/2 | 1/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1/2 | 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1/2 | 3/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 3/4 | 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 3/4 | 3/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 | 3/8 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 | 1/2 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 | 3/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 1/4 | 3/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 1/4 | 1 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 1/2 | 3/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 1/2 | 1 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 1 1/2 | 1 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 2 | 1 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 2 | 1 1/4 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
| 2 | 1 1/2 | 300 psi @ 72° F | 150 psi @ 350° F | 00000000 | 00000 |
Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe
Designed for low-pressure flow applications, this pipe is also known as Schedule 40.
304 stainless steel pipe offers very good corrosion resistance. 316 stainless steel pipe has excellent corrosion resistance.
Welded pipe has a weld bead on the inside.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
BSPT × NPT Fully Threaded—304/304L Stainless Steel
- For Use With: Natural Gas, Oil, Steam, Water, Air
- Specifications Met: ASTM A312
- Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
BSPT × NPT Threaded on Both Ends—304/304L Stainless Steel
- For Use With: Natural Gas, Oil, Steam, Water, Air
- Specifications Met: ASTM A312
1 1/4 Pipe Size: ASTM A733, ASME B1.20.1, ISO 7.1 - Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
| Lg. | Construction | Each | |
1/8 Pipe Size | |||
|---|---|---|---|
| 1 1/2" | Welded | 00000000 | 00000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 0000 |
| 12" | Welded | 00000000 | 00000 |
1/4 Pipe Size | |||
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 0000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
3/8 Pipe Size | |||
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 0000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
1/2 Pipe Size | |||
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
| Lg. | Construction | Each | |
3/4 Pipe Size | |||
|---|---|---|---|
| 1 1/2" | Welded | 00000000 | 00000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
1 Pipe Size | |||
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
1 1/2 Pipe Size | |||
| 2" | Welded | 00000000 | 00000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
2 Pipe Size | |||
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
BSPT × NPT Threaded on Both Ends—316/316L Stainless Steel
- For Use With: Natural Gas, Oil, Steam, Water, Air
- Specifications Met: ASTM A733, ASME B1.20.1, ISO 7.1
- Fittings: Use Class 150 stainless steel
- Flanges: Use Class 150 stainless steel
| Lg. | Construction | Each | |
1/8 Pipe Size | |||
|---|---|---|---|
| 3/4" | Welded | 00000000 | 00000 |
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 000000 | 0000 |
| 4" | Welded | 00000000 | 0000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
1/4 Pipe Size | |||
| 7/8" | Welded | 00000000 | 0000 |
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 0000000 | 0000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
3/8 Pipe Size | |||
| 1" | Welded | 0000000 | 0000 |
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 0000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 0000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 00000 |
1/2 Pipe Size | |||
| 1 1/8" | Welded | 00000000 | 0000 |
| 1 1/2" | Welded | 0000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 0000000 | 00000 |
| 36" | Welded | 00000000 | 000000 |
3/4 Pipe Size | |||
| 1 3/8" | Welded | 00000000 | 0000 |
| 1 1/2" | Welded | 00000000 | 0000 |
| 2" | Welded | 00000000 | 0000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 0000000 | 000000 |
| Lg. | Construction | Each | |
1 Pipe Size | |||
|---|---|---|---|
| 1 1/2" | Welded | 00000000 | 000000 |
| 2" | Welded | 00000000 | 00000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 000000 |
1 1/4 Pipe Size | |||
| 1 5/8" | Welded | 00000000 | 00000 |
| 2" | Welded | 00000000 | 00000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 000000 |
1 1/2 Pipe Size | |||
| 1 3/4" | Welded | 00000000 | 00000 |
| 2" | Welded | 00000000 | 00000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 00000 |
| 36" | Welded | 00000000 | 000000 |
2 Pipe Size | |||
| 2" | Welded | 00000000 | 00000 |
| 3" | Welded | 00000000 | 00000 |
| 4" | Welded | 00000000 | 00000 |
| 6" | Welded | 00000000 | 00000 |
| 12" | Welded | 00000000 | 000000 |
| 36" | Welded | 00000000 | 000000 |